BACKGROUND:Dark Koopas are crazy Koopas. They spin in their shells almost all the time. Dark Koopas can also create tornados that makes their opponents dizzy.
There are two types: one has a purple shell, and the other is completely black and are like shadows. Both Dark Koopas appear underground. The reason is that Dark Koopas like dark surroundings.

EVOLUTION:Dark Koopas appeared in the first time in Paper Mario. In Paper Mario they lived in the Toad Town Tunnels. In Paper Mario The Thousand-year Door, they appeared in the Pit of 100 Trials.
They last appeared in Super Paper Mario. But this time it wasn't the normal Dark Koopa, this time it was a shadow of a Koopa. This Dark Koopa appeared in the Flopside Pit of 100 Trials.